The foundation of the CJ-8 is a mandrel-bent, 2x4-inch, 3⁄16-inch-thick Advanced Frame Works chassis (which is now available through Throttle Down Kustoms). Johnson made several modifications to the frame including sealing it and filling sections with oil to resist internal corrosion. The body consists of an extensive collection of fiberglass items from Kentrol. The list includes the body tub, hood, and fenders. The hardtop is also fiberglass. Exterior mods are minimal, but include stainless steel windshield and door hinges, hood hold-downs, and front bumper. Speaking of the doors, the half doors seen here are sourced from a Wrangler YJ, but Johnson also has full steel CJ doors with roll-up windows. The rig rolls on 31-inch Goodyear Wrangler MT/Rs that are 10½ inches wide and mounted on 8-inch-wide Eagle Alloy aluminum wheels.